Struct CursorView 

pub struct CursorView<'a> { /* private fields */ }

Read-only view over per-node, per-level cursor values used by Policy::evaluate.

The view is indexed by node first, then level: nodes[i][level as usize] is the highest sequence node i has reached at level. Callers (the response stage) build this view once per gate iteration from atomic loads on the live cursors. Tests build it directly from constant arrays.

&[[u64; 2]] rather than &[NodeCursors]: the inner array indices match Level as usize so the hot-path lookup is a pointer-arithmetic load rather than a struct-field branch.

Implementations

impl<'a> CursorView<'a>

pub fn new(nodes: &'a [[u64; 2]]) -> CursorView<'a>

Build a view from a slice of [in_memory, persisted] pairs. Caller is responsible for indexing matching Level’s discriminant order — [0] = InMemory, [1] = Persisted.

pub fn len(&self) -> usize

Number of nodes in the view.

pub fn is_empty(&self) -> bool

Whether the view has no nodes.